Originally, 2200 posts ago, Rule Machine only had rules. They are hard enough to understand, but make sense once you do grasp the idea of conditions and a logical rule. But, triggers were a needed element as well. I knew fully well when I introduced triggers that it would lead to confusion. What to do? I decided to give the functionality and try to deal with the confusion.
The best idea is to read the original documentation, which is kept up to date.